.watershed-explorer-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
}

.watershed-explorer-wrapper * {
    box-sizing: border-box;
}

.watershed-explorer-wrapper .container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

.watershed-explorer-wrapper .header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.watershed-explorer-wrapper .header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 600;
}

.watershed-explorer-wrapper .header p {
    font-size: 1.1em;
    opacity: 0.95;
}

.watershed-explorer-wrapper #map {
    height: 600px;
    width: 100%;
    position: relative;
}

.watershed-explorer-wrapper .info-panel {
    background: #f8f9fa;
    padding: 30px;
    min-height: 200px;
}

.watershed-explorer-wrapper .info-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #dee2e6;
}

.watershed-explorer-wrapper .info-header h2 {
    color: #495057;
    font-size: 1.5em;
    margin-right: 15px;
}

.watershed-explorer-wrapper .click-hint {
    background: #e3f2fd;
    color: #1976d2;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
}

.watershed-explorer-wrapper .watershed-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.watershed-explorer-wrapper .watershed-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.2s;
    position: relative;
    cursor: pointer;
    border: 2px solid transparent;
}

.watershed-explorer-wrapper .watershed-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 12px 0 0 12px;
}

.watershed-explorer-wrapper .watershed-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.watershed-explorer-wrapper .watershed-card.highlighted {
    border-color: #fbbf24;
    background: #fffbeb;
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

.watershed-explorer-wrapper .watershed-level {
    font-size: 0.85em;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.watershed-explorer-wrapper .watershed-name {
    font-size: 1.1em;
    color: #212529;
    font-weight: 600;
    margin-bottom: 8px;
}

.watershed-explorer-wrapper .watershed-code {
    font-size: 0.95em;
    color: #495057;
    font-family: 'Courier New', monospace;
    background: #f1f3f5;
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 10px;
}

.watershed-explorer-wrapper .download-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #e9ecef;
}

.watershed-explorer-wrapper .download-label {
    font-size: 0.85em;
    color: #6c757d;
    margin-bottom: 8px;
}

.watershed-explorer-wrapper .download-buttons {
    display: flex;
    gap: 8px;
}

.watershed-explorer-wrapper .download-btn {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.2s;
    color: #495057;
    font-weight: 500;
    flex: 1;
    text-align: center;
}

.watershed-explorer-wrapper .download-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
    transform: translateY(-1px);
}

.watershed-explorer-wrapper .loading {
    display: none;
    text-align: center;
    padding: 40px;
    color: #6c757d;
}

.watershed-explorer-wrapper .loading.active {
    display: block;
}

.watershed-explorer-wrapper .spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: watershed-explorer-spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes watershed-explorer-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.watershed-explorer-wrapper .no-data {
    text-align: center;
    padding: 40px;
    color: #6c757d;
}

.watershed-explorer-wrapper .legend {
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    font-size: 0.9em;
    max-width: 200px;
}

.watershed-explorer-wrapper .legend h4 {
    margin: 0 0 12px 0;
    color: #495057;
    font-size: 1.1em;
    font-weight: 600;
}

.watershed-explorer-wrapper .legend-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    position: relative;
}

.watershed-explorer-wrapper .legend-item.nested {
    margin-left: 15px;
}

.watershed-explorer-wrapper .legend-item::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 10px;
    width: 8px;
    height: 1px;
    background: #dee2e6;
}

.watershed-explorer-wrapper .legend-item.nested:first-of-type::after {
    content: '';
    position: absolute;
    left: -10px;
    top: -8px;
    bottom: 10px;
    width: 1px;
    background: #dee2e6;
}

.watershed-explorer-wrapper .legend-color {
    width: 24px;
    height: 24px;
    border-radius: 3px;
    margin-right: 10px;
    position: relative;
    border: 2px solid;
}

.watershed-explorer-wrapper .legend-hierarchy {
    font-size: 0.85em;
    color: #868e96;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #dee2e6;
    line-height: 1.4;
}

.watershed-explorer-wrapper .clear-button {
    position: absolute;
    top: 80px;
    right: 10px;
    z-index: 1000;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.9em;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.2s;
}

.watershed-explorer-wrapper .clear-button:hover {
    background: #f8f9fa;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

@keyframes watershed-explorer-pulse {
    0% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(251, 191, 36, 0); }
    100% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0); }
}

.watershed-explorer-wrapper .highlighted-polygon {
    animation: watershed-explorer-pulse 2s infinite;
}